HYT Hastroid Rainbow Nebula

HYT Hastroid Rainbow Nebula: over the rainbow

Reading Time: 3 minutes

Across time and space, a new kind of spacecraft is relentlessly exploring the watchmaking galaxy on the lookout for new unique expressions of the watchmaker’s art…

Contemporary timepieces designed by HYT, exclusive owners of mecafluid technology, the symbiotic marriage of science and micromechanics, are propelling the creativity of fine watchmaking into a new universe. Transforming usual perceptions, HYT develops extraordinary measurement instruments. With HYT, preparations are on for the future and watchmaking has begun its transformation...

HYT Hastroid Rainbow Nebula

Get on board now for a new voyage: Mission Hastroid Rainbow Nebula

Mission objective: to support artists

Flight plan: Launch and orbit on 10 December 2022.

Instrument: HYT Hastroid Rainbow Nebula (single piece).

How are rainbows born? Some appear in the dreams of artists. With HYT, the dream is becoming a reality and is taking on the form of a single piece of contemporary fine watchmaking: the HYT Hastroid Rainbow Nebula watch

HYT Hastroid Rainbow Nebula

A nebula in rainbow colours

Bold, colourful, captivating, this flamboyant watch will be offered as a single piece for sale at the Time For Art charity auction in New York. The Hastroid Rainbow Nebula combines the artistic masterful expertise that guides Davide Cerrato, HYT CEO and creative director, and the feats of the mecafluid technology that are unique to this independent Swiss watchmaking brand. 

For lovers and collectors of luxury watches, the rainbow display has always been very attractive.  Here, HYT has enhanced the concept using luminescent material to obtain a double rainbow effect: the day, using Super-Luminova and the night, through unique and spectacular shading reflecting bright emotions.

This luminescent and surprising effect is boosted by the same use in the section behind the capillary with the effect of gradual coverage with the black fluid as time moves ahead and the wow effect of the retrograde fluidic movement

This artistic feat is displayed at the heart of a watch from the HYT Hastroid collection, distinguished by its astonishing 48 mm diameter casing, with a total length of 58.3 mm and a 13.3 mm case thickness. It is shaped from the most modern or contemporary high-quality materials: titanium, titanium and carbon or an original composite and titanium alloy.

Like a flight deck, the watch, waterproof up to 50 metres, is topped by domed sapphire crystal offering a largely unobstructed view of the overall dial. The centrepiece of the mecafluid mechanism remains, of course, the fluid system, with two central “bellow” reservoirs, whose design, unique to HYT creations, reinforces the character and feeling of power and the capillary surrounding the dial.

The watch is driven by a manual winding mechanical movement (41 rubies), 501 CM calibre, at a frequency of 28,800 vibrations per hour (4 Hertz) and with 72 hours’ power reserve, designed by Eric Coudray, a renowned master in the field, an artist of watchmaking design.

HYT Hastroid Rainbow Nebula

About Time For Art (New York / December 2022)

TimeForArt is a charity auction of extraordinary watches. The organiser, the Swiss Institute, in collaboration with the auction house Phillips, in association with Bacs & Russo, has approached the greatest watchmakers in the world.  HYT is especially proud to take part. It should be noted that 100% of profits will go directly to the most visionary artists of today, through exhibitions, public programmes, educational workshops and community engagement by the Swiss Institute, all free of charge, of course, through the funding allowed by the sale.

TimeForArt is a biennial auction, but throughout the year it also provides a sharing platform between watchmaking and the visual arts.

TimeForArt will be presented in a special way during the Phillips New York Watch Auction in December 2022.

HYT Hastroid Rainbow Nebula Technical Specifications

Reference H02913-A


  • Retrograde fluidic hours
  • Central minutes hand
  • Small second hand
  • Power reserve hand


  • Calibre 501-CM (352 parts)
  • type: Mechanical
  • frequency: 28’800 Hz
  • Jewels: 41
  • Winding: Manual
  • Power reserve: 72 hours
  • Finishing:Finely sandblasted and satin
  • Coating & Color: Black coating


  • Black coated satin finished titanium (64 parts)
  • Crown in coated black titanium
  • Domed sapphire crystal (box) with anti-reflective coating
  • Width: 48.00 mm
  • Length: 52.30 mm
  • Thickness: 17.20 mm
  • Water-resistant: 50 metres


  • Black-coated brass & transparent plate (50 parts)
  • 3D black coated appliques, rainbow luminous numbers (Lumicast)
  • Black grid with black background
  • Black liquid inside borosilicate capillary tube

Strap & Buckle

  • Black rubber strap
  • Black-coated titanium buckle with satin & sandblasted finishes

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.